Gaya APA

Craig, J, R, V, D. (1981). Ore Microscopy & Ore Petrography . : Jonh Wiley & Sons, Inc.

Gaya MLA

Craig, James, R.&, Vaughan,, D.J.. "Ore Microscopy & Ore Petrography". : Jonh Wiley & Sons, Inc, 1981. Text.